JPH0451660U - - Google Patents
Info
- Publication number
- JPH0451660U JPH0451660U JP9403090U JP9403090U JPH0451660U JP H0451660 U JPH0451660 U JP H0451660U JP 9403090 U JP9403090 U JP 9403090U JP 9403090 U JP9403090 U JP 9403090U JP H0451660 U JPH0451660 U JP H0451660U
- Authority
- JP
- Japan
- Prior art keywords
- metering tube
- slider
- switching valve
- gas
- solenoid valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000007789 gas Substances 0.000 claims description 5
- 239000012159 carrier gas Substances 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
Landscapes
- Details Of Valves (AREA)
Description
第１図は本考案に係る切換弁の一実施例を示す
サンプル取込状態の断面図、第２図はサンプルパ
ージ状態の断面図、第３図はスライダの平面図、
第４図はバツクフラツシユベント方式を採用した
工業用ガスクトマトグラフを示す概略構成図であ
る。
１……恒温槽、２……切換弁、３，４……パツ
クドカラム、５……バツクフラツシユバルブ、６
……計量管、７……検出器、１０……ブロツク、
１２……スライダ、１３……電磁弁、１４ａ，１
４ｂ，１５ａ，１５ｂ，１６Ａ，１６Ｂ……通路
、１６Ｂ……軽量管、１７……ヒータ、ＣＧ……
キヤリアガス、ＳＧ……サンプルガス。
FIG. 1 is a cross-sectional view of an embodiment of the switching valve according to the present invention in a sample intake state, FIG. 2 is a cross-sectional view of the sample purge state, and FIG. 3 is a plan view of the slider.
FIG. 4 is a schematic diagram showing an industrial gas tomatograph employing a backflush vent system. 1... Constant temperature chamber, 2... Switching valve, 3, 4... Packed column, 5... Back flush valve, 6
...Measuring tube, 7...Detector, 10...Block,
12...Slider, 13...Solenoid valve, 14a, 1
4b, 15a, 15b, 16A, 16B... passage, 16B... lightweight tube, 17... heater, CG...
Carrier gas, SG...sample gas.
Claims (1)
スライダに３個の通路を並列に貫通形成し、中央
の通路を計量管とし、前記スライダの進退移動に
より前記ブロツクに設けたキヤリアガスおよびサ
ンプルガスの通路を順次前記計量管に切り換え接
続するガスクロマトグラフの切換弁において、 前記スライダを計量管の周囲にヒータを設けた
セラミツクスで形成して電磁弁に連結すると共に
、前記ヒータと電磁弁とを電気的に接続し、通電
時のみ前記計量管を昇温するようにしたことを特
徴とするガスクロマトグラフ用切換弁。[Claims for Utility Model Registration] Three passages are formed in parallel through a slider which is disposed between two blocks so as to be able to move forward and backward, and the central passage is used as a metering tube. In a switching valve for a gas chromatograph in which carrier gas and sample gas passages provided in a block are sequentially switched and connected to the metering tube, the slider is formed of ceramics with a heater provided around the metering tube and connected to the solenoid valve, A switching valve for a gas chromatograph, characterized in that the heater and a solenoid valve are electrically connected to raise the temperature of the metering tube only when energized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9403090U JPH0451660U (en) | 1990-09-10 | 1990-09-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9403090U JPH0451660U (en) | 1990-09-10 | 1990-09-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0451660U true JPH0451660U (en) | 1992-04-30 |
Family
ID=31831665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9403090U Pending JPH0451660U (en) | 1990-09-10 | 1990-09-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0451660U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9657852B2 (en) | 2004-03-05 | 2017-05-23 | Waters Technologies Corporation | Flow through isolation valve for high pressure fluids |
-
1990
- 1990-09-10 JP JP9403090U patent/JPH0451660U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9657852B2 (en) | 2004-03-05 | 2017-05-23 | Waters Technologies Corporation | Flow through isolation valve for high pressure fluids |
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